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Chinese Academy of Sciences Institutional Repositories Grid
Relationship between the molybdenum phases and the conversion of n-butane over Mo/HZSM-5

文献类型:期刊论文

作者Yuan, SD; Hamid, SBDA; Li, YX; Ying, PL; Xin, Q; Derouane, EG; Li, C
刊名journal of molecular catalysis a-chemical
出版日期2002-03-11
卷号180期号:1-2页码:245-258
关键词n-C4H10 Mo/HZSM-5 molybdenum carbide MoO3 aromatization
英文摘要the conversion of n-c4h10 was undertaken on moo3/hzsm-5 catalyst at 773-973k and the phases of molybdenum species were detected by xrd. the xrd results show that bulk moo3 on hzsm-5 can be readily reduced by n-c4h10 to moo2 at 773 k and moo2 can be gradually carburized to molybdenum carbide above 813 k. the molybdenum carbide formed from the carburization of moo2 with n-c4h10 below 893 k is alpha-moc1-x with fcc-structure, while hcp-molybdenum carbide formed above 933 k. during the evolution of moo3 to moo2 (>773 k) or the carburization of moo2 to molybdenum carbide (>813 k), deep oxidation, cracking and coke deposition are serious, in particular at higher reaction temperatures, these lead to the poor selectivity to aromatics. aromatization of n-c4h10 can proceed catalytically on both mo2c/hzsm-5 and moo2/hzsm-5, the distribution of the products for the two catalysts is similar below 813 k, but the, activity for mo2c/hzsm-5 is much higher than that for moo2/hzsm-5. (c) 2002 elsevier science b.v. all rights reserved.
WOS标题词science & technology ; physical sciences
类目[WOS]chemistry, physical
研究领域[WOS]chemistry
关键词[WOS]transition-metal carbides ; modified zsm-5 zeolites ; catalytic properties ; oxidative dehydrogenation ; surface-area ; aromatization ; isomerization ; nitrides ; platinum ; methane
收录类别SCI
原文出处true
语种英语
WOS记录号WOS:000174334600025
公开日期2010-11-30
源URL[http://159.226.238.44/handle/321008/85673]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Liverpool, Dept Chem, Leverhulme Ctr Innovat Catalysis, Liverpool L69 3BX, Merseyside, England
推荐引用方式
GB/T 7714
Yuan, SD,Hamid, SBDA,Li, YX,et al. Relationship between the molybdenum phases and the conversion of n-butane over Mo/HZSM-5[J]. journal of molecular catalysis a-chemical,2002,180(1-2):245-258.
APA Yuan, SD.,Hamid, SBDA.,Li, YX.,Ying, PL.,Xin, Q.,...&Li, C.(2002).Relationship between the molybdenum phases and the conversion of n-butane over Mo/HZSM-5.journal of molecular catalysis a-chemical,180(1-2),245-258.
MLA Yuan, SD,et al."Relationship between the molybdenum phases and the conversion of n-butane over Mo/HZSM-5".journal of molecular catalysis a-chemical 180.1-2(2002):245-258.

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来源:大连化学物理研究所

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